Changes related to "Milestones:Development of the HP-35, the First Handheld Scientific Calculator, 1972"
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16 May 2013
- (Upload log); 17:58 . . Administrator4 uploaded "File:HP 35 Milestone invitation001.jpg" (A particularly creative Milestone dedication ceremony invitation, honoring the HP-35 pocket calculator. The invitation was printed on the back of a card made to look like -- and be the same size as -- the HP-35 pocket calculator, which in turn fitted into)